Use this URL to cite or link to this record in EThOS:
Title: Modelling damage and deformation behaviour of a nickel-based superalloy using constitutive models
Author: Cornet, Christophe
ISNI:       0000 0004 2672 2669
Awarding Body: University of Portsmouth
Current Institution: University of Portsmouth
Date of Award: 2009
Availability of Full Text:
Access from EThOS:
Uniaxial cyclic visco-plastic behaviour of a nickel-based superalloy, RRIOOO, has been successfully described under strain-controlled conditions by Tong and associates using Chaboche type of models with two kinematic hardening components. In this work, the ability of the original model was evaluated to consider unbalanced stress-controlled conditions at selected stress ranges and ratios. A third kinematic hardening component was introduced in the constitutive model to enabled an improved solution with which both ratchetting and cyclic deformation can be modelled adequately. The role of each kinematic hardening parameter in the description of ratchetting was examined and discussed with respect to the modified model response.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available